react-speedometer/dist/utils.js

Cool speedometer for React

export const polarToCartesian = (centerX, centerY, radius, angleInDegrees) => {
    const angleInRadians = ((angleInDegrees - 90) * Math.PI) / 180.0;
    return {
        x: centerX + radius * Math.cos(angleInRadians),
        y: centerY + radius * Math.sin(angleInRadians),
    };
};
export const getCirclePath = (x, y, radius, startAngle, endAngle) => {
    const start = polarToCartesian(x, y, radius, endAngle * 0.9999);
    const end = polarToCartesian(x, y, radius, startAngle);
    const largeArcFlag = endAngle - startAngle <= 180 ? '0' : '1';
    const d = ['M', start.x, start.y, 'A', radius, radius, 0, largeArcFlag, 0, end.x, end.y];
    return d.join(' ');
};